|
|
| Author |
Message |
Bayliss Thomas
Joined: 25 Sep 2009
Posts: 557
Location: SUFFOLK
|
 Posted: Thu Jun 10, 2010 7:39 pm Post subject: Screeching brake problem |
 |
|
| The drum brakes on my car have always made an heck of an din screeching, its now very embarrassing. I was told that I should wrap an length of brake hose around the external perimeter of the drum and secure / tighten and clamp. This I am assured will cure the problem, has anyone tried this or have other remedies. Thanks. |
|
| Back to top |
|
 |
michael1703
Joined: 22 Jul 2009
Posts: 349
Location: suffolk
|
| Posted: Thu Jun 10, 2010 10:09 pm Post subject: |
|
|
| constant screeching or screeching on moderate/heavy braking? |
|
| Back to top |
|
|
Fluffle-Valve
Joined: 30 Dec 2009
Posts: 521
Location: At my computer in a bungalow in Duston, Northampton.
|
| Posted: Thu Jun 10, 2010 11:15 pm Post subject: |
|
|
Clean the brake dust out of the drums and use some heavy gritted sand paper to score the inside of the drum and take the sheen off the shoes... 
Worked on my Series III Land Rover... 
_________________
 Series 3 1972 LWB Truck Cab Pick Up. My daily drive. |
|
| Back to top |
|
|
Bayliss Thomas
Joined: 25 Sep 2009
Posts: 557
Location: SUFFOLK
|
| Posted: Fri Jun 11, 2010 12:52 pm Post subject: |
|
|
Thank you for replies, the brake linings are new and the drum are clean, but I will put some sandpaper over the linings to rough them up a little.
The screeching is as soon as I start braking and the heavier I brake the louder it gets and it is really very loud indeed.  |
|
| Back to top |
|
|
Nic Jarman
Joined: 05 Oct 2008
Posts: 1031
Location: Stoke by Clare, Suffolk
|
| Posted: Fri Jun 11, 2010 1:14 pm Post subject: |
|
|
Screaching can be caused by movement in the operating mechanism or securing points. Maybe even the wheel bearings. Any play will allow the shoes or drum to vibrate. This is just about one of the most annoying problems to solve as the vibration/sound can travel through parts and sound like it is coming from somewhere else. Good luck.
_________________
1936 Morris 8 Series 1
1973 MGB roadster
1977 MG Midget 1500
Dax Rush |
|
| Back to top |
|
|
poodge
Joined: 23 Nov 2007
Posts: 687
|
| Posted: Sat Jun 12, 2010 5:54 am Post subject: |
|
|
| Local lore always suggested the ends of the linings to be beveled at about 45 degrees,to combat said problem.Don't know if it works though. |
|
| Back to top |
|
|
Brian M
Joined: 23 Nov 2007
Posts: 783
Location: Leigh-on-Sea, Essex
|
| Posted: Sat Jun 12, 2010 7:34 am Post subject: |
|
|
An old mechanic told me many years ago to put a smear of Copper Grease on any points where metal rests on metal within the braking system. I have been doing this ever since and have only heard a squeak when the grease has worn through.
On discs I put it on the back of the pads where the caliper piston pushes and on the tips of the pads where they rest in the "cradle".
Just did the drums on the back of the Volvo, and put it on the ends of the shoes, and on the back plate where the shoes touch four raised areas.
_________________
Brian
1970 Volvo Amazon and 1978 Safari 15-4 Caravan
Classic Safari Forum: www.classicsafaris.co.uk |
|
| Back to top |
|
|
Nic Jarman
Joined: 05 Oct 2008
Posts: 1031
Location: Stoke by Clare, Suffolk
|
| Posted: Sat Jun 12, 2010 11:17 am Post subject: |
|
|
A chamfer on the leading edge helps to have a smooth progressive brake. If you have a look at the Talbot thread you will see the copper grease on all moving parts in the brakes. However the brakes do squeal slightly They will probably bed in. Always put a dab on the back of disc pads. WARNING new old stock may well contain asbestos.
_________________
1936 Morris 8 Series 1
1973 MGB roadster
1977 MG Midget 1500
Dax Rush |
|
| Back to top |
|
|
lowdrag
Joined: 10 Apr 2009
Posts: 1585
Location: Le Mans
|
| Posted: Mon Jun 14, 2010 9:00 am Post subject: |
|
|
Reminds me of the time when we a chap on tour complained of squealing discs. He thought he'd cure the problem by greasing the disc..........
No, a true one, not an old wive's tale either.  |
|
| Back to top |
|
|
peter scott
Joined: 18 Dec 2007
Posts: 7120
Location: Edinburgh
|
| Posted: Mon Jun 14, 2010 9:13 am Post subject: |
|
|
| lowdrag wrote: | Reminds me of the time when we a chap on tour complained of squealing discs. He thought he'd cure the problem by greasing the disc..........
No, a true one, not an old wive's tale either. |
Yes, so silly. We all know it would just burn off! 
Peter
_________________
http://www.nostalgiatech.co.uk
1939 SS Jaguar 2 1/2 litre saloon |
|
| Back to top |
|
|
Nic Jarman
Joined: 05 Oct 2008
Posts: 1031
Location: Stoke by Clare, Suffolk
|
| Posted: Mon Jun 14, 2010 12:31 pm Post subject: |
|
|
| peter scott wrote: | | lowdrag wrote: | Reminds me of the time when we a chap on tour complained of squealing discs. He thought he'd cure the problem by greasing the disc..........
No, a true one, not an old wive's tale either. |
Yes, so silly. We all know it would just burn off!
Peter |
Is that before or after he hits the car in front? Crash and burn, best way to go. 
_________________
1936 Morris 8 Series 1
1973 MGB roadster
1977 MG Midget 1500
Dax Rush |
|
| Back to top |
|
|
Jim.Walker
Joined: 27 Dec 2008
Posts: 1229
Location: Chesterfield
|
| Posted: Mon Jun 14, 2010 5:26 pm Post subject: |
|
|
| Brian M wrote: | | An old mechanic told me many years ago to put a smear of Copper Grease on any points where metal rests on metal within the braking system. |
As another old mechanic, I think a smear of zinc base gease or alternatively copper grease SHOULD be applied to every contact surface within the brake drum (except of course the linings, which must not be contaminated in any way).
During the course of the life of the linings (and during adjustment) the shoes are constantly re- centreing themselves to keep in maximum contact with the drum. Lack of suitable lubrication will lead to a fall of in performance and uneven wear along the length of the lining.
Somewhere on this Forum there is quite a lot of posting about strapping of various kinds around brake drums to alter the vibration frequency which causes the noise. It used to be fairly common 'wen I wer a lad'.
Jim.
_________________
Quote from my late Dad:- You only need a woman and a car and you have all the problems you
are ever likely to want". Computers had not been invented then! |
|
| Back to top |
|
|
Bayliss Thomas
Joined: 25 Sep 2009
Posts: 557
Location: SUFFOLK
|
| Posted: Wed Jul 07, 2010 10:06 pm Post subject: |
|
|
| Thanks for all the tips, I still haven't got around to my attempt to banish the noise but will first try out the trick of 'strapping' an band around the drum. |
|
| Back to top |
|
|
WLC4EVA
Guest
|
| Posted: Sun Jul 18, 2010 6:34 pm Post subject: |
|
|
.
You say your drums were clean Thomas.
Did you break the glaze?
If not, here's the poor man's method,
1) bolt the drum backwards onto a driven axle hub.
2) with the engine ticking over in first gear
3) apply sandpaper to friction face of rotating drum.
4) repeat for other 3 drums.
5) count fingers, actually, I think it feels a lot more dangerous that it is.
Don't do it with permanent all-wheel drive unless all your wheels are off the ground.
A prudent man gets his drums skimmed at a machine shop before he fits new linings.
Kind Regards, WLC
Last edited by WLC4EVA on Mon Jul 19, 2010 8:29 am; edited 1 time in total |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Profile
Log in to check your private messages
Log in
